<template>
  <div class="cmt-container">
    <h3>发表评论</h3>
    <hr>
    <textarea v-model="msg" placeholder="请输入您的评论" maxlength="120"></textarea>
    <mt-button type="primary" size="large" @click="postComments">发表评论</mt-button>
    <div class="cmt-list">
      <div class="cmt-item" v-for="(item,i) in comments" :key="i">
        <div
          class="cmt-title"
        >第{{i+1}}楼&nbsp;&nbsp;用户: {{item.user_name}}&nbsp;&nbsp;发表时间:{{item.add_time | dataFormat}}</div>
        <div class="cmt-body">{{item.content==='undefined'?'此用户很懒什么也没说':item.content}}</div>
      </div>
      <mt-button type="danger" size="large" @click="getMore">加载更多</mt-button>
    </div>
  </div>
</template>

<script>
import { Toast } from "mint-ui";
export default {
  data() {
    return {
      pageindex: 1,
      comments: [],
      msg: "" //
    };
  },
  props: ["id"],
  created() {
    this.getComments();
  },
  methods: {
    getMore() {
      this.pageindex++;
      this.getComments();
    },
    getComments() {
      this.$http
        .get("api/getcomments/" + this.id + "?pageindex=" + this.pageindex)
        .then(result => {
          if (result.body.status === 0) {
            this.comments = this.comments.concat(result.body.message);
          } else {
            Toast("获取数据失败");
          }
        });
    },
    postComments() {
      this.$http
        .post("api/postcomment/" + this.$route.params.id, { content: this.msg })
        .then(function(result) {
          if (result.body.status === 0) {
            var cmt = {
              user_name: "匿名用户",
              add_time: Date.now(),
              content: this.msg.trim()
            };
            this.comments.unshift(cmt);
            this.msg = "";
          }
        });
    }
  }
};
</script>

<style lang="scss" scoped>
.cmt-container {
  margin-bottom: 50px;
  h3 {
    font-size: 18px;
  }
  textarea {
    font-size: 14px;
    height: 85px;
    outline: none;
    margin: 0;
  }
  .cmt-list {
    .cmt-item {
      font-size: 13px;
      .cmt-title {
        background-color: #ccc;
        line-height: 30px;
      }
      .cmt.body {
        line-height: 35px;
        text-indent: 2em;
      }
    }
  }
}
</style>


